I could see how senheisers would sound veiled to some
I mean, that’s because you got used to Grados, which, for most, sound too bright. 
Anyway, to each their own obviously. 
The same can be said for the DT 990s, but I love them.
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Yeah, I also make electronic music sometimes, so, bass.
I also listen to my music loud, and the louder you listen to music, the more the treble can sound harsh. I like the ability to crank up the volume without hearing harshness/sibilance.
So, Sennheiser HD58X are just the perfect open-backs for me. That’s what I would have wanted my SR60e’s to sound like. All the clarity in the world with none of the pain… for me. 
The topic of Grado headphones seems to be a very controversial one here in the forum.
In addition, it seems that for some people graphic curves are so important that they either base their purchase decision on it or think they can evaluate a headphone based on these measurements.
It may be difficult for me to understand both.
Because some manufacturers deliberately create such a sound image in order to do justice to the original purpose.
A Grado in the middle and higher price segment, for example, is certainly not intended as a workhorse on a PC or as an occasionally usable headphone, it is too extravagantly tuned for that.
When I have the time and muse and either test a headphone or put on my own collection of headphones to enjoy my music collection.
I switch on my Audiovalve Luminare and let it warm up, in the meantime prepare a glass of wine, then sit down in peace, plug in the headphones of my choice and listen to the music of my choice in dim light and beeing completely relaxed.
And suddenly some impossible frequency curves make sense.
In this situation I don’t need an exorbitant bass or raised mids, but a coherent sound.
Because in this case I want to be shouted at by the artist, nor should the low frequency prevent me from enjoying the rest of the music.
For such a situation, a Grado PS2000e or a number smaller, an RS2e, for example, is extremely enjoyable.
Suddenly the concept of a Sennheiser HD820 makes sense, which, I can confirm, is simply too flat as headphones to function as a sidekick.
And headphones, the heights of which are described as detailed and room-opening in a quiet environment, often seem annoying to us if we perceive other things on the side.
This is related to our multitasking ability and is just a natural control in the brain.
Sorry, the psychologist in me gets through. 
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The grado sound just works well with older people tbh. For old people by old people lol. That’s not saying they are a bad headphone, just something that isn’t really designed for modern music, nor people with sensitive ears to fatigue. That boost in the fatigue range really helps out those with reduced capability in that range, and also caters to a specific sound for specific genre of music, just a more specialized product
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Then call me Grandpa 
I’m definitely not a fan of all grado’s, but especially these two meet my taste from the collection that I had the pleasure of hearing.
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I own a pair of 400i and they have zero bass without EQ.
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What amp are you using?
Joutenheim w/balanced dac primarily. The 400i sound excellent with EQ. I use True-Fi by Soundworks.
Hmm, I wonder if your opinion would change on a different amp
Also sonarworks is pretty great
If you look at their frequency response the 400i have a sharp roll-off under 100HZ. It’s not a big deal really, I use EQ with every headphones I own. They all have too much bass roll-off, mid-bass hump, treble peak, etc. I just bought an iFi Zen Audio amp/dac, but I haven’t tried the 400is on it yet. For me, Sennhesiers are the only ones I could listen to without EQ if I had to.
The 400i is fairly linear down to 40ish imo and starts to noticeably roll off. Do you wear glasses?
Nope. I am going off the graphs on Soundworks. It’s easy to hear. When I say that they have zero bass, I mean it. With EQ (flat line) they sound good. Perhaps I own a weird pair, which is definitely possible with HiFiMans quality control issues. I also own a pair of Edition S. I doubt that I will ever buy another pair of HiFiMans.
You are comparing a compensated target made by sonarworks, so in that case they would have that roll off you describe if you are only looking at the sonarworks target. No problems, but when you are used to the sonarworks profile you may find them lacking without
I thought the HE400i rolled off also with the all velour focus pads. With the hybrid focus pads, they rolled off, but much less so. Either way, I thought that regardless of FR, the bass sounded anemic. The 7Khz treble peak also bothered me A LOT.
I am mainly going off of the focuspads not the focuspads a here. I can see how the bass can be anemic for some, but I don’t really think it rolls off, it’s just not as elevated as some like it, which is not an issue as that’s just more preference
THEY HAVE ZERO BASS! I don’t need to look at a graph to hear it. They have less bass than the AKG K240s. They are completely unlistenable without EQ.
I owned them for over a year before I bought the Sonarworks. FYI, I haven’t changed the pads.
Perhaps you did get a messed up set then I’ve heard many more headphones with less bass than the 400i
I have always wondered that because others have commented on their decent bass.